review using graphs and formulas. appendix a graph is like a street map—it is a simplified version...
TRANSCRIPT
Review
Using Graphs and Formulas
•Using Graphs and Formulas
Appendix
A graph is like a street map—it is a simplified version of reality.
Bar Graph A.Occupation Average Salary
University President
$
Provost $
Deans $
Male Tenured Professor
$
Female Tenured Professors
$
Male Untenured Professors
$
Female Untenured Professors
$
Grad Students $
Football Coaches $
Average Academic Salaries
Bar Graph A.
iPod SalesFiscal Year Q1 Q2 Q3 Q4 Total
2002 125,000 57,000 54,000 140,000 376,000
2003 219,000 78,000 304,000 336,000 937,000
2004 733,000 807,000 860,000 2,016,000 4,416,000
2005 4,580,000 5,311,000 6,155,000 6,451,000 22,497,000
2006 14,043,000 8,526,000 8,111,000 8,729,000 39,409,000
2007 21,066,000 10,549,000 9,815,000 10,200,000 51,630,000
2008 22,121,000 10,644,000 11,011,000 11,052,000 54,828,000
2009 22,727,000 11,013,000 10,215,000 43,955,000
Fiscal Year Q1 Q2 Q3 Q4 218,048,000
Bar Graph B.
Formulas: Percentage Change
100 periodfirst in the Value
periodfirst in the Valueperiod second in the Valuechange Percentage
One important formula is the percentage change, which is the change in some economic variable, usually from one period to the next, expressed as a percentage.
Pie Chart
Country Military Spending
United States $711
Europe $289
China $122
East Asia/Australia
$120
Middle East/
N. Africa
$82
Russia $70
Latin America $39
Central/South Asia
$30
Sub-Saharan Africa
$10
Total: $1.473 trillion
Example: Pie ChartMarbles
orange, 15
green, 40
blue, 25
red, 10
One Variable Graph
Time-Series Graphs
Figure 1A.2 Time-Series Graphs
Time-series graphs
Appendix
FIGURE 1A-3
Plotting Price and Quantity Points in a Graph
•Graphs of Two Variables
Appendix
FIGURE 1A-6
Graphing the Positive Relationship between Income and Consumption
•Graphs of Two Variables• Positive and Negative Relationships
Determining cause and effect
Determining cause and effect
Number of credits taken by students
What is a variable that has no effect on the number of credits taken by students?
What is the slope of the line that shows this relationship?
Price
Name a product that people also buy in the same quantity, regardless of price?
What is the slope of the line that shows the relationship between the price of this product and the quantity purchased?